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CLC520
CLC520 Amplifier with Voltage Controlled Gain, AGC +Amp
Literature Number: SNOS861C
CLC520
Amplifier with Voltage Controlled Gain, AGC +Amp
General Description
The CLC520 is a wideband DC-coupled amplifier with volt-
age controlled gain (AGC). The amplifier has a high imped-
ance, differential signal input; a high bandwidth, gain control
input; and a single-ended voltage output. Signal channel
performance is outstanding with 160MHz small signal band-
width, 0.5 degree linear phase deviation (to 60MHz) and
0.04% signal nonlinearity at 4VPP output.
Gain control is very flexible and easy to use. Maximum gain
may be set over a nominal range of 2 to 100 with one
external resistor. In addition, the gain control input provides
more than 40dB of voltage controlled gain adjustment from
the maximum gain setting. For example, a CLC520 may be
set for a maximum gain of 2 (or 6dB) for a voltage controlled
gain range from 40dB to less than 34dB. Alternatively, the
CLC520 could be set for a maximum gain of 100 or (40dB)
for a voltage controlled gain range from 40dB to less than
0dB.
The gain control bandwidth of 100MHz is superb for AGC/
ALC loop stabilization. And since the gain is minimum with a
zero volt input and maximum with a +2 volt input, driving the
control input is easy.
Finally, the CLC520 differential inputs, and ground refer-
enced voltage output take the trouble out of designing
DC-coupled AGC circuits for display normalizers; signal lev-
eling automatic circuits; etc.
Enhanced Solutions (Military/Aerospace)
SMD Number: 5962-91694
Space level versions also available.
For more information, visit http://www.national.com/mil
Features
n 160MHz, −3dB bandwidth
n 2000V/µsec slew rate
n 0.04% signal nonlinearity at 4VPP output
n −43dB feedthrough at 30MHz
n User adjustable gain range
n Differential voltage input and single-ended voltage
output
Applications
n Wide bandwidth AGC systems
n Automatic signal leveling
n Video signal processing
n Voltage controlled filters
n Differential amplifier
n Amplitude modulation
Gain vs. Vg
01275640
01275639
Gain vs. Vg
Connection Diagram
01275629
Pinout
DIP & SOIC
May 2001
CLC520 Amplifier with Voltage Controlled Gain, AGC +Amp
© 2001 National Semiconductor Corporation
DS012756
www.national.com
Ordering Information
Package
Temperature Range
Industrial
Part Number
Package
Marking
NSC
Drawing
14-pin plastic DIP
−40˚C to +85˚C
CLC520AJP
CLC520AJP
N14A
14-pin plastic SOIC
−40˚C to +85˚C
CLC520AJE
CLC520AJE
M14A
CLC520
www.national.com
2
Absolute Maximum Ratings
(Note 1)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC)
±7V
IOUT
Output is short circuit protected to
ground, but maximum reliability will
be maintained if IOUT does not
exceed...
60mA
Common Mode Input Voltage
±VCC
VIN Differential Input Voltage
10V
Vg Differential Input Voltage
±VCC
Vref Differential Input Voltage
±VCC
Junction Temperature
+150˚C
Operating Temperature Range
−40˚C to +85˚C
Storage Temperature Range
−65˚C to +150˚C
Lead Solder Duration (+300˚C)
10 sec
ESD (human body model)
500V
Operating Ratings
Thermal Resistance
Package
(θJC)
(θJA)
MDIP
55˚C/W
105˚C/W
SOIC
45˚C/W
120˚C/W
Electrical Characteristics
AV = +10, VCC = ±5V, RL = 100Ω, Rf = 1kΩ, Rg = 182Ω, Vg = +2V; unless specified
Symbol
Parameter
Conditions
Typ
Max/Min (Note 2)
Units
Ambient Temperature
CLC520AJ
+25˚C
−40˚C
+25˚C
+85˚C
Frequency Domain Response
SSBW
-3dB Bandwidth
VOUT <0.5VPP
160
>110
>120
>120
MHz
SSBW
VOUT <0.5VPP (AJE only)
140
>90
>100
>100
MHz
LSBW
VOUT<4.0VPP
140
>85
>100
>100
MHz
-3dB Bandwidth
VOUT <0.5VPP
SBWC
Gain Control Channel
VIN = +0.2V, Vg = +1VDC
100
>80
>80
>80
MHz
Gain Flatness
VOUT< 0.5VPP
GFPL
Peaking
0.1MHz to 30MHz
0
<0.4
<0.3
<0.4
dB
GFPH
Peaking
0.1MHz to 20MHz
0
<0.7
<0.5
<0.7
dB
GFRL
Rolloff
0.1MHz to 30MHz
0.1
<0.4
<0.3
<0.4
dB
GFRH
Rolloff
0.1MHz to 60MHz
0.5
<1.3
<1
<1.3
dB
LPD
Linear Phase Deviation
0.1MHz to 60MHz
0.5
<1.2
<1
<1.2
deg
FDTH
Feedthrough
Vg = 0V, VIN = -22dBm
-38
<-31
<-31
<-31
dB
TRS
Rise and Fall Time
0.5V Step
2.5
<3.7
<3
<3
ns
TRL
4.0V Step
3.7
<5
<5
<5
ns
TS
Settling Time to ±0.1%
2.0V Step
12
<18
<18
<18
ns
OS
Overshoot
0.5V Step
0
<15
<15
<15
%
SR
Slew Rate
4V Step
2000
>1450
>1450
>1450
V/µsec
HD2
2nd Harmonic Distortion
2VPP, 20MHz
−47
<−40
<−40
<−35
dBc
HD3
3rd Harmonic Distortion
2VPP, 20MHz
−60
<−50
<−50
<−45
dBc
Equivalent Output Noise
(÷10 for input noise) (Note
3)
SNF
Noise floor
1MHz to 200MHz
−132
<−130
<−130
<−129
dBm
(1Hz)
INV
Integrated noise
1MHz to 200MHz
800
<1000
<1000
<1100
µV
DG
Differential Gain (Note 4)
at 3.58MHz
0.15
%
DP
Differential PIase (Note 4)
at 3.58MHz
0.15
deg
Static, DC Performance
SGNL
Integral Signal Nonlinearity
VOUT = 4VPP
0.04
<0.1
<0.1
<0.2
%
Gain Accuracy
Rf = 1kΩ, Rg = 182Ω
GACCU
For Nominal Max Gain = 20dB
±0
<±1.0
<±0.5
<±0.5
dB
VOS
Output Offset Voltage (Note 5)
40
<150
<120
<150
mV
DVOS
Average Temperature Coefficient
100
<400
–
<300
µV/˚C
CLC520
www.national.com
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